Home / 103,638.13-155,457.20-33,517.45

Finding the Fourth Proportional to 103,638.13, 155,457.20 and 33,517.45

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Solution

The fourth proportional to 103,638.13, 155,457.20 and 33,517.45 is: 50,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,638.13 : 155,457.20 = 33,517.45 : x
  2. Step 2: Convert to fraction form
    103,638.13/155,457.20 = 33,517.45/x
  3. Step 3: Cross multiply
    103,638.13x = 155,457.20 × 33,517.45
  4. Step 4: Simplify right side
    103,638.13x = 5,210,528,928.14
  5. Step 5: Solve for x
    x = 5,210,528,928.14/103,638.13
  6. Step 6: Final answer
    x = 50,276.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.